N=1/2 gauge theory and its instanton moduli space from open strings in R-R background

TL;DR

This paper derives N=1/2 super Yang-Mills theory from open string theory with R-R backgrounds and explores its instanton moduli space using D-brane systems, revealing new insights into non-perturbative effects.

Contribution

It provides a string-theoretic derivation of N=1/2 super Yang-Mills and analyzes instanton moduli space via D-branes in R-R backgrounds, connecting string theory and gauge theory.

Findings

Derived N=1/2 super Yang-Mills from open string theory.

Analyzed instanton moduli space using D-brane systems.

Connected string backgrounds to gauge theory instantons.

Abstract

We derive the four dimensional N=1/2 super Yang-Mills theory from tree-level computations in RNS open string theory with insertions of closed string Ramond-Ramond vertices. We also study instanton configurations in this gauge theory and their ADHM moduli space, using systems of D3 and D(-1) branes in a R-R background.